# 約数マスター vs Slango

The clearest difference is in-app purchases: 約数マスター at none against Slango's 1. 約数マスター also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Slango sells 1 one-off in-app purchase. 約数マスター asks for nothing beyond the download.

## The numbers

| Metric | 約数マスター | Slango |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 9 days |
| Size | 3 MB | 40 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Daisaku Harasaki](https://appshunter.io/developer/1222906711) | [Yuito Ukita](https://appshunter.io/developer/6779112243) |

## What reviewers say

### 約数マスター

[App page](https://appshunter.io/ios/app/id6758949613)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Slango

[App page](https://appshunter.io/ios/app/slango/id6789338636)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Slangoプレミアム | $1.99 | one-time |


## Frequently asked questions

### Is 約数マスター free?

約数マスター is free to download, with no in-app purchases.

### Is Slango free?

Slango is free to download, with in-app purchases available.

### Do 約数マスター or Slango have ads?

Slango shows ads; 約数マスター does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*